Is this waterblock compatible with my RTX 5090?

This Bykski waterblock is designed for the RTX 5090. Please check the product title for specific card brand compatibility (ASUS, MSI, Gigabyte, etc.) as non-reference PCB designs require model-specific blocks. If you are unsure of your card's PCB variant, contact FormulaMod support at customermanager@formulamod.net before ordering.

Will this reduce noise on my RTX 5090 during AI workloads?

Yes. Stock RTX 5090 air coolers run at 45-65 dBA under sustained AI inference loads (Ollama, Stable Diffusion, ComfyUI). A full-cover waterblock like this mounted to a 360mm radiator typically reduces noise to under 30 dBA while also lowering VRAM temperatures from 90°C+ to 60-70°C, preventing throttling during long generation runs.

What else do I need for a complete water cooling loop?

A complete custom loop requires: this GPU waterblock, a radiator (360mm recommended for single GPU, 480mm for GPU+CPU), a D5 or DDC pump with reservoir combo, G1/4 fittings, tubing, and premixed coolant. FormulaMod sells complete kits starting at $249 USD including pump, radiator, and fittings.

Does this waterblock cover the VRAM and VRM chips?

Full-cover waterblocks cool the GPU die, VRAM modules, and VRM components simultaneously via a single block with an integrated cold plate. This is essential for AI workloads where sustained 100% VRAM utilization can cause memory junction temperatures to exceed 110°C on air cooling. The full-cover design distributes coolant flow across the entire PCB thermal zone.

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Bykski B-FRD-RTX4070S All-in-One Liquid Cooler for NVIDIA GeForce RTX4070S

$379.25 USD

セール売り切れ

配送料はチェックアウト時に計算されます。

Size 360mm 360mm Thick row(Dual Graphics Cards)

Color Black

SKU:N-ML5090GR-SR-V2-360

Bykski B-FRD-RTX4070S All-in-One Liquid Cooler for NVIDIA GeForce RTX4070S, 360mm Copper Radiator, Full-Cover Block with Backplate

TL;DR: The B-FRD-RTX4070S is a sealed, pre-filled all-in-one liquid cooler matched to the NVIDIA GeForce RTX 4070 Super reference PCB layout. A full-coverage block contacts the GPU die, GDDR6X memory packages and VRM stages through factory-applied thermal interface materials, and feeds a 360mm copper...

Common Applications

The B-FRD-RTX4070S is a sealed, pre-filled all-in-one liquid cooler matched to the NVIDIA GeForce RTX 4070 Super reference PCB layout. A full-coverage block contacts the GPU die, GDDR6X memory packages and VRM stages through factory-applied thermal interface materials, and feeds a 360mm copper radiator that mounts three 120mm fans on the standard 360 pattern. Because the loop ships filled and sealed at the factory, installation is reduced to fitting the block to the card, mounting the radiator in a 360-compatible slot and connecting power - no coolant filling, leak-testing or pump priming is required. It targets builders running sustained gaming, content-creation or local AI inference workloads on a 4070 Super who want lower VRAM and core temperatures than the stock cooler delivers without committing to a full open loop.

Frequently Asked Questions

Q: Which graphics card does the B-FRD-RTX4070S fit?

A: The NVIDIA GeForce RTX 4070 Super reference PCB. Aftermarket boards from ASUS, MSI, Gigabyte and others use different PCB layouts and require a model matched to that specific card.

Q: What radiator size is included?

A: A 360mm copper radiator that mounts three 120mm fans on the standard 360 fan pattern. Confirm your chassis supports a 360mm radiator in the top or front before purchase.

Q: Does the block cool memory and VRM as well as the GPU die?

A: Yes. The full-coverage block contacts the GPU die, GDDR6X memory packages and VRM stages through the supplied thermal pads and paste.

Q: Does it require refilling or maintenance?

A: No. It ships pre-filled and sealed, and does not require routine coolant top-ups under normal use.

Q: What thread are the radiator and block ports?

A: G1/4 inch, the standard for PC water-cooling fittings, though the loop itself is sealed and not intended to be opened.

Why Water Cool the RTX 5090?

575W TDP under AI load

32GB VRAM (throttles at 92°C)

<30dB With water cooling

- 575W TDP is the highest ever in a consumer GPU — stock triple-fan coolers hit 55+ dBA under sustained AI load, unusable in home office
- 32GB GDDR7 runs hot at full utilization; waterblocks with full VRAM coverage prevent throttling during long inference sessions
- Dual-5090 AI workstation (1150W GPU power) is only physically buildable with water cooling — air coolers are too thick

Full-cover water blocks cool GPU die + VRAM + VRM simultaneously — unlike air coolers that only target the GPU die.